. >> this video obtained exclusively by cnn shows dorner just 12 hours after the irvine killings, apparently placing a military belt, a helmet and ammunition behind an auto parts store in san diego. >> of course he knows what he's doing, we trained him. he was also a member of the armed forces. it is extremely worrisome and scary, especially to the police officers involved. >> hours after that press conference with southern california police on high alert, at 10:30 p.m., dorner slipped into this san diego marina, boarded a boat and surprised its owner. >> he pointed a handgun at the victim who was an 81-year-old male and demanded the boat. >> dorner told the man he wanted to flee to mexico. >> the suspect then attempted to start the boat. >> but a rope became caught in the boat's propeller, delaying dorner's escape. >> at that point the suspect became frustrated, took a few small items, including cell phone and some other miscellaneous items from inside the boat, tied the victim up and left in an unknown direction. >> he didn't harm the 81-year-old man, why? i think because he wasn't a cop.